Summary
Updated Aug 31, 2026
James Bubeck is CHIEF REVENUE OFFICER of COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI). 3 SEC Form 4 filings on record going back to 2024, most recently on 4 June 2025. Most recent open-market trade: sold $95K of CCOI on 4 June 2025. Lifetime open-market sales: $398K.
Recent Transactions
4Every recent SEC Form 4 transaction James Bubeck has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies James Bubeck files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Thaddeus Gerard Weed - $372K of CCOI open-market activity in the last 12 months
- Lewis H. Ferguson - $189K of CCOI open-market activity in the last 12 months
- Henry W. Kilmer - $186K of CCOI open-market activity in the last 12 months
- Sheryl Lynn Kennedy - $181K of CCOI open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is James Bubeck?
James Bubeck is a corporate insider, tracked as CHIEF REVENUE OFFICER of COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did James Bubeck last file a Form 4?
The most recent primary Form 4 on record is dated 4 June 2025, one of 3 filings going back to 2024.
Has James Bubeck been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($398K) across all tracked filings.
Where can I see all of James Bubeck's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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